The flowerhead of Arctotheca calendula may have pale or deep yellow rays, paler or darker in a short section at the base. The oblanceolate ray florets are slightly more in number than can fit into one side-by-side ring around the disc. The ray tips that curve slightly down are minutely three-toothed.
The dark disc has yellow open florets with some long protruding parts visible above the perianth tubes. These may be stamens. The soft, fleshy and hollow peduncle has a covering of dark hairs.
This Namaqualand flower was seen early in August (Manning, 2007).
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